Joint for brewers&#39; and like pipes.



H. HILL. JOINT FOR BREWERS AND LIKE PIPES.

APPLICATION FILED SEPT. 4. 1913.

1,1 13,994. I Patented Oct. 20, 1914.

4 c 5 g V I I I I I I v RS CO. PHOTO-1710.. WASHINGYQN. D. C.

A UNITED STATES .PATE TIOF Q HENRY HrLnor noxron, LONDON, ENGLAND." r

To all whom it may concern:

Be it known that I, HENRY ject of the King of Great Britain. andlreland,residing at 92 New North road, Hox ton, London, in the county of London,Eng

land, have invented certain new and useful Improvements in Jolnts forBrewers and like Pipes, of which the followingk is a] specification.

My invention relates to improvements in joints for short lengths of tinorlike pipe such as are used for the passage of beer or other liquids.

Such pipes are usually made of tin andof a length of about six inchesand have a small flange at each end. These have been connected togetherby means of short lengths of india-rubber tube into which the ends ofthe pipesto be joined are forced until their flanges abut one againstthe other, also ferrules of various types having a single screw threadeither parallel or tapered, have been used for screwing over the ends ofthe rubber tube to compress same around the flanged ends of the pipes.

In accordance with 1 inyYinvention I employ a special ferrule of brassor other suitable material to fit over the rubber connecting tubes andfirmlysecure the pipes together. These ferrules of brass or othermaterlal are slightly tapered internally and screwed with adouble screwthread prefer.-

ably of V section and are suitably milled or otherwise serrated on theirexterior. One of these ferrules is screwed on to each end of the rubberconnection as far up as the bulge, caused by the flanges on theends ofthe lengths of pipe, will allow; thus com pressing the rubberconnections all around the pipes and forming a goodliquor-tight joint.The use of a. double thread. in the ferrules causes them to engage therubber connection simultaneously on opposite sides, facilitating theirapplication; whereas if a single thread were employed, as the threadwould engage on one side only great difficulty would be found in puttingthem on straight.

A joint made according to my invention may be readily taken apart forcleaning and be reassembled by any unskilled person.

In order that my invention may be more readily understood reference ishad to the accompanying drawings in which Figure 1 is a section throughthe ends of two lengths of pipe connected by my im- Jonvrnor. nnnwnnswarm Press. 1

proved joint; and Figs. 2, 3 war are re- HILL," subspectivelysection,end view and side'eleva- .tionto a larger scaleof the ferrule employedtherein. a l In Fig.

1. indicates the .ends of two lengthsof pipe of tin or other suitablematerial provided [with flangesa. B is the tubular rubber connectionwithin which the ends of the tubes A are forced and which the flanges acause to bulge out at b. C are the ferrules milled externally andslightly tapered internally and provided with double V shape. One ofthese ferrules is screwed Specification of LettersPatent. Patentec l oct. 20, Application filed September 4, 19 13. Serial No. 78 55,042. i ii helical screw threads 0 and 0 preferably of l 5 7o -on to each end ofthe rubber connection B as farjas :the bulge b will allow, compressingtherubber connection all around the end of each pipe.

Fig. 2 's avertical section of a ferrule O clearly showing the twoseparate screw threads 0 and c i Fig. 3 is an end view of the ferruleshowing the two screw threads 0 and 0 commencing on oppositesidesthereof.

Fig. 4; is a side elevation showing the mill ing 0 on the exterior ofthe ferrules C.

What I claim as my invention and desire to secure by Letters Patentis 1. Joint for brewers pipes comprising in combination abutting flangedpipe ends, a

rubber sleeve inclosing said abutting ends,

rings placed on respective ends ofsaid sleeve and a plurality of wormsformed on the interior of each ring each worm being of decreasingdiameter outward from the side disposed toward saidxabutting ends andthe commencement of the large diameter part of each worm be1ng arrangedsubstantially diametrically opposite to the commencement ofthecorresponding part of another worm on the same ring.

2. Joint for brewers pipes comprising in combination abutting flangedpipe ends, a rubber sleeve surrounding said abutting ends, rings placedon respective ends of said sleeve and two worms of a doublet-breadedscrew formed on the interior. of each ring each worm-being of graduallydecreasing diameter and gradually increasing depth outward fromthe sideof the ring disposed toward said abutting ends.

3. J oint for brewers pipes; comprising in combination abutting flangedpipe ends, a rubber sleeve inclosing said ends, rings placed onrespective ends of said sleeve two worms of a double threaded screwformed side of the to the commencement of the corresponding combinationabutting rubber sleeve inclosing partof the other worm and means uponthe exterior of each of the turning thereof.

4. Joint for brewers placed on the respective ends of said sleeve saidrings to facilitate" pipes; comprising in flanged pipe ends, a; saidends and rlngsf my hand in the presence of two witnesses.

HENRY HILL. Witnesses:

J NO. H. RAYNER, TRACY LAY.

1 Games of this patent may be obtained for five cents each, byaddressing the Commissioner of 2atents, Washington, D. G.

